I bought some SealSkins gloves that work very well for mid-range temps - between 35 and 70 more or less.
http://www.sealskinz.com/ultra-grip-gloves
I got mike from a UK web site (Wiggle or something) but I think REI, Bass Pro, etc sells them, too.
http://www.basspro.com/SealSkinz-Wat.../19362/-677059
They are very snug fitting, so you might want to buy a size larger.